If it is the sender,the Pantera tank is so tall, the actuating arm is extremely long so a FIAT, Alfa Romeo etc sender is similar but all have short arms. There are no cheap work-arounds. But all the vendors stock the reproduction late sender which fits both early & late tanks, reasonably. In early tanks, that gives you an extra fuel-out port. Many owners that convert to EFI use the early welded in-tank fuel port for the fuel return and the easily serviced fuel port built into the late sender for a fuel feed.